A Doll's House
HELMER: "Hasn't Miss Sweet Tooth been breaking rules in town today? […] taken a bite at a macaroon or two?"
NORA: "No, Torvald." (1.55-1.62)
NORA: "It was necessary he should have no idea what a dangerous condition he was in. It was to me that the doctors came and said that his life was in danger." (1.193)
HELMER: "My little songbird must never do that again. A songbird must have a clean beak to chirp with--no false notes!" (1.435)